INTEGRATED FIRE FIGHTING VALVE AND SYSTEM
An enhanced fire prevention system includes a valve having three or more ports in which water is drawn from a source and diverted away from a water filtration system and directed towards a hose used to battle a fire. The valve includes a pressure relief assembly that is connected to and integrally formed within the valve. The valve may also be housed within a hydrant apparatus installed within an existing water main or irrigation lines.
This application claims the benefit of U.S. Provisional Patent Application No. 61/262,466 filed on Nov. 18, 2009, titled “Integrated Fire Fighting Valve And System,” which is incorporated herein by reference.
TECHNICAL FIELDThe systems and methods described herein relates to fire prevention devices that facilitates use of water repositories and associated equipment in close proximity to the repository where an otherwise adequate water supply may not be available for controlling fire or other applications.
BACKGROUNDUse of fire hoses in association with a public water supply is well known. Typically, a fire hose is attached to a hydrant by firefighters to control a structure, land, or other object that is on fire. In some areas, however, a hydrant is not located in close proximity to the blaze, and an adequate source of water is not available. Particularly in rural areas, a hydrant or other source of water may be located hundreds of feet or more from a fire, meaning that another water source must be relied upon to fight the fire. Even in more densely populated areas, hydrants may be located nearby, but may be of no help. With many municipalities operating at budget deficits, hydrants and associated pipelines may be in a state of disrepair. Otherwise, hydrants may be damaged by unauthorized use or vandalism, making them unavailable when needed. In either case, the assumption that a nearby hydrant equates to an abundance of water may be incorrect.
In addition, in many rural areas, fire departments are comprised of volunteers rather than full-time career personnel. This means that the time to respond to a fire may be increased while volunteer firefighters assemble and travel to the site. In the meantime, the property owner in need of emergency assistance and without a meaningful water supply can do little to mitigate the damage to the property.
A swimming pool is usually equipped with a complex network of valves, pipes, and devices that provide circulation and filtration of the water to maintain clean and hygienic swimming conditions. Firefighters have been known to place portable pumps in swimming pools or other reservoirs to provide water under pressure through a fire hose to fight a fire in close range to a water source. A swimming pool system consists of multiple valves and pipes “hard-fitted” and permanently installed as part of the pool equipment. There are several drawbacks to these permanently installed systems. First, they consist of numerous and often unnecessary valves and pipes to prevent pool pump damage, which are not compatible with fire fighting functions and other uses, and which increase equipment installation and maintenance costs. Second, the parts of the system dedicated to the water use are permanently fixed, providing no flexibility in terms of location of use. Hard-fitted valves only direct water to the place near where the valve is situated. The flexibility required to fight fires anywhere on a property is not provided by a hard-fitted system.
SUMMARYThe fire prevention system solves the above-described problems by providing homeowners or business owners with equipment that can be used to rapidly respond to an active fire while providing portability. A three-way or four-way valve is situated in locations throughout the swimming pool filtration and pump system that allows a user easy access for fire hose connection where needed to address a fire at various locations on the property. Unlike prior art systems that employ complex hard-fitted valve and pipe arrangements to address a condition of a blockage that impedes the flow of water through the fire hose and potentially to and from the swimming pool pump and other equipment, the system employs an integrated valve. This integrated valve permits selected water flow to the fire hose and at the same time provides relief to the system in the event of a blockage condition. The valve and associated system offers property owners with equipment that along with water from a swimming pool, spa or other water source may be used in a fire emergency. In addition, when water from a chlorinated swimming pool or spa is used, an in-line cartridge that largely removes chlorine from the water is provided. The in-line cartridge for chlorine removal allows use of pool or spa water for other purposes such as irrigation, house or sidewalk cleaning, etc. without introducing significant levels of chlorine to the environment.
The fire prevention system offers the additional benefit of providing water removal capability from a desired location. For example, many swimming pools may be constructed with inadequate or non-existing overflow prevention capabilities. In such circumstances, heavy rain can place a swimming pool in an overflow condition. Swimming pools that overflow or crest may cause serious damage when the pool is situated in close proximity to doors of a residence or valued areas. In these cases, the fire prevention system may be used to draw water from the pool and return to pool's water to a safe level.
A number of hazards can threaten a property owner, perhaps none is more threatening than fire. Fire hydrants are typically installed in residential and commercial areas at locations viewed to be available to a number of properties within the immediate area. In rural settings, however, fire hydrants (if available at all) may be situated more sporadically. In fact, many rural residents are not connected to a municipal water supply, but instead obtain water through a well. In addition, although residents in more densely populated areas seemingly have access to water for fire fighting purposes because of close proximity to a hydrant, the hydrant may be inoperable due to age or vandalism. Although a municipality may be responsible for maintaining hydrants in good working order, various factors such as its staffing or budget constraints may inhibit a municipality's ability to properly maintain hydrants.
The firefighting system resolves these problems by providing property owners with the ability to draw from existing water sources, such as swimming pools, spas, ponds, irrigation systems or a water main line to combat fire. The system advantageously provides an integrated three-way or four-way valve that alleviates the threat of damage to pool or spa equipment. The system also provides portability that prior art systems do not. This allows combating a fire from different locations throughout a property, rather than only from a single location.
Under normal, non-emergency operation, water from swimming pool 100 entering valve 200 at a first port 204 passes through valve 200 to a second port 206. This results from valve 200 being set so first port 204 and second port 206 are in an open condition with the port 208 closed. In this state, water flowing into the first port 204, through valve 200 and out of second port 206 returns to the pool filter 104 of swimming pool 100. Under these normal conditions virtually all of the water removed from swimming pool 100 is returned to the pool through second port 206.
When operating the system and valve 200 in fire emergency mode, the third port 208 and fourth port 210 of valve 200 are employed. In emergency mode, water continues to be drawn from swimming pool 100 using pump 102. Water arrives at valve 200 via port 204. In emergency mode, however, the second port 206 for returning water to pool 100 is closed within the hub 202 of valve 200 and the third port 208 is open. A fire hose 212 may be detachably connected to third port 208 via a fire hose thread. Typically, this is a one and one-half inch thread, but could be of various sizes (through use of by example, couplings) to accommodate various hose sizes. In emergency mode, water from pool 100 is directed to the valve 200 by pump 102 and is directed further to open third port 208, rather than second port 206, which is closed either manually or automatically. Thus, water is available for control of small fires and is not returned to the pool 100.
Valve 200 also includes a fourth port 210 as an integrated safety feature to prevent damage to pump 102 and other equipment. Within fourth port 210 is a pressure relief valve 214. Pressure relief valve 214 may be a spring loaded valve that is forced into an open position when pressure exerted on the valve reaches a predetermined level. During normal emergency operations, no water escapes relief valve 214 via port 210. In operation, water flow through fire hose 212 may be impeded if the hose 212 is crimped, has a blockage or if a nozzle 213 attached to hose 212 is placed in the closed position. In these circumstances, pump 102 continues to operate yet pumped water has no way in which to escape the system. This reverse pressure may cause damage to pump 102. To solve this problem in an efficient and cost effective manner, a spring loaded valve 214 located at fourth port 210 responds to the built up water pressure by forcing the spring loaded flap or plunger within spring loaded valve 214 to the open position. As a result, water that was otherwise blocked escapes from the fourth port 210 via opening 216 of spring loaded valve 214, relieving reverse pressure upon pump 102. This released water may simply spill to the ground. Alternatively, an overflow conduit may be attached between opening 216 of spring loaded valve 214 and the pipe 220 leading from second port 206 back to filter 104. In this manner, excess water is not wasted but remains available for fire-prevention purposes. In addition, the integration within valve 200 of this pressure relief function eliminates complex pipe and valve networks that add considerable expense in terms of installation and maintenance.
In accordance with the system, valve 200 is incorporated into piping that connects the pump 102 with the filter 104. In normal operation mode (non-emergency) the four-way valve 200 is set for continuous water flow from the pump 102 to filter 104 via a backwash valve. A fire hose 212 is detachably connected to the four-way valve 200 through connecting pipe 206. Under normal, non-emergency operation, the four-way valve 200 is turned, either manually or automatically, into a position where all or substantially all of the water flow is directed to filter 104. In emergency mode, the four-way valve is set, either manually or automatically for all or substantially all of the water flow to be directed towards fire hose 212, with no or almost no water being directed back to the pool filter 104. The four-way valve 200 serves the purposes of directing water in the desired manner as well as providing a safeguard to protect expensive pool equipment from damage in the event of a hose blockage. Operator safety is also promoted as injury to the operator in close proximity to a valve, hose or other pool equipment under excessive pressure is likely.
Another embodiment of the fire prevention valve is depicted in
Since fitting 908 may be detachably connected to valve 900, a user may transport the fitting 908, including pressure relief valve 910 and attached fire hose 212 from a first property to a second property equipped with a multi-port valve of the fire prevention system. This provides the added economic benefit of using a single fire prevention system at multiple locations. The portability advantages of the system and valve are realized further by locating a valve 900 at multiple locations between fire hose 212 and pump 102. In this manner, fire hose 212 may be detachably installed at various locations throughout the property to address a blaze. This overcomes limitations of hose length, which is a significant issue on larger properties having multiple structures or other areas that may be susceptible to fire.
Another embodiment of the fire prevention system is depicted in
Referring back to
The various parts of the system may be made available to a customer in a kit. This kit enables swimming pool installers as part of new pool construction to install the fire-prevention system. Alternatively, the valve 200 and associated equipment of the system may be installed in existing pool systems. As much of piping for swimming pools is made of PVC, valve 200, 900 or 1000 may be easily cut into existing plumbing to provide the valve 200, 900 or 1000 at any desired location. In addition, existing valves may be easily replaced by valve 200, 900 or 1000. The kit offered to consumers may include the fire hose 212, valve 200, 900 or 1000, associated fitting pipes, and a nozzle 213. This kit allows for easy modification of a traditional pool system into a valuable water source to be used in an emergency.
Another embodiment of the fire fighting equipment of the system integrated within a conventional swimming pool and swimming pool water circulating system includes the additional feature of an in-line water dechlorinating unit, such as a filter. The dechlorinating unit may be of the size and type commercially available and may be installed, for example, in valve 200 of
The safety and performance advantages described above in connection with firefighting valves described 200, 900, and 1000 may also be incorporated in a valve having more than four ports. For example, today's swimming pools may include complex operation and entertainment features, including a spa, multiple water falls, water return jets, slides and the like. In order to supply the necessary water to these features, valves having more then four ports may be utilized within the pool's water circulation and filtration plumbing network. These valves may reside at various locations within the pool water circulation and filtration network. Accordingly, the firefighting capabilities and water pressure relief valves described above may be incorporated into various ports of the valves having more than four ports. For example, a valve having seven ports with five ports serving water intake for filtration from various locations of the pool and water return to various locations will have available two additional ports. One additional port may be used for connection of a fire hose and another port may have incorporated a pressure relief valve. Operation of this valve having more than four ports is similar to operation of the valves discussed above. In non-emergency operations, the five ports of the valve dedicated to water circulation will facilitate the intake of water from the pool for filtration and the return of water to the pool, via various return points located at or within the pool, after filtration. In emergency mode, the return ports for returning water to the pool will be closed, with the intake port remaining open to draw water from the pool. The port to which the fire hose is connected will remain open, as well. Another port to which a pressure relief valve is attached or integrated is active during emergency operations, as discussed above. If there is a blockage in the fire hose that causes pressure build up within the multi-port valve, the pressure relief valve will “open” and built up water within the valve will be released out of the associated valve port.
Those skilled in the art will recognize the advantages of the above-described system and valve in view of the foregoing disclosure. The integrated four-way valve and accompanying system installed in conventional swimming pool systems provides a portable fire prevention and control system and pool equipment safety features. The system also permits introduction of a dechlorination feature enabling use of water from a swimming pool for other uses while removing low-levels of chlorine found in residential swimming pools. One example may be insertion of an in-line filter that provides dechlorination capability. Several applications of the systems and methods may become readily apparent to those skilled in the art in light of the foregoing disclosure.
Yard/Utility Hydrant VariantA second system is presented to offer similar benefits of water provisioning as discussed above in the swimming pool/pond application of the fire prevention system. This system includes the various reverse pressure relief aspects described above that may damage plumbing and valve components. In this second system, however, pressure is provided from a water main line stemming from a municipal water supply line rather than a swimming pool or lake utilizing a pump. As will be discussed below, when the valve arrangement of the system is installed in the main water supply line passing through a commercial or residential property, a high pressure water supply capability is achieved without the need for a pump or electricity. Further, for properties having installed irrigation/sprinkler systems, multiple valve boxes of the system may be installed at locations on existing pipes leading to sprinkler heads. This provides the added benefit of easy installation of multiple ports or “hydrants” throughout the property for fire prevention measures. This yard/utility employs a similar concept as described in the pool/pond embodiment. This system allows the user the same capabilities as previously acknowledged with the additional advantages discussed below. In addition, the yard/utility hydrant operates to provide water output pressure in the 50 to 100 PSI range. Water output flow for fighting a fire in the range of 30 to 50 gallons per minute may be achieved through main line or sprinkler system installation. The water main line on a particular property may stem from a municipal water supply or a ground well-water supply. Even with water supplied to a main line through a well, pressure and output capacity similar to the ranges discussed above are achieved, making the fire prevention system equally effective when based on a well-water source.
With the addition of an in-line contamination prevention device (check valve), recommended for portable water delivery, the system may be installed on any existing residential or commercial main water line. No external pump is required.
This system negates water volume restrictions associated with the size of the source for which the system has been adapted. Multiple hydrant valve boxes 502 may be integrated into one system at various convenient locations, as shown in
In addition to providing mitigation of fire threat risk, the yard/utility hydrant variant offers a wide range of flexible utility options. With external accessories the tool can be used for high volume pressure wash, irrigation, agricultural applications, etc.
InstallationSprinkler/Irrigation Systems
Main Line Systems
Main line system installation may be understood by reference to
In an alternative embodiment, placement of a valve 200, 900, or 1000 within a main line 402 or irrigation line 404 within a plumbing network will make water available to various locations on a property while at the same time making available to safety features discussed above. The operation of this pressure relief valve installed in a water main line 402 or irrigation line 404 is similar in operation discussed in connection with
Those skilled in the art will recognize the advantages of the above-described system and yard/utility hydrant in view of the foregoing disclosure. The yard/utility hydrant system installed in conventional residential or commercial irrigation system or existing water supply line provides a fire prevention and control system and associated safety features. Several modifications of the systems may become readily apparent to those skilled in the art in light of the foregoing disclosure.
Claims
1. A fire prevention system for drawing water from a source, comprising:
- (a) a valve having three ports;
- (b) a pump;
- (c) a hose for detachable connection to a first of the three ports of the valve; and
- (d) a pressure relief assembly integrated within a second of the three ports of the valve.
2. The system of claim 1 wherein the pressure relief assembly integrated within the second port of the valve is spring loaded.
3. The system of claim 2 wherein the spring loaded pressure relief assembly assumes an open position upon accumulation within the valve of in excess of a predetermined amount of water pressure.
4. A system for fire prevention, comprising:
- (a) a primary water supply;
- (b) a water diverter having at least three ports;
- (c) an above-ground water access port; and
- (d) a pressure relief assembly connected to a first of the at least three ports of the water diverter.
5. The system of claim 4 wherein the pressure relief assembly connected to a first of the at least three ports of the water diverter is spring loaded.
6. The system of claim 5 wherein the spring loaded pressure relief assembly assumes an open position upon accumulation within the valve of in excess of a predetermined amount of water pressure.
7. The system of claim 6, further comprising a hose that is detachably connected to a second port of the water diverter having at least three ports.
8. The system of claim 4 wherein the primary water supply is an irrigation system water supply line.
9. The system of claim 4 wherein the primary water supply is a municipal water supply line.
10. The system of claim 9, further comprising a check valve, wherein the check valve prevents backflow of water into the municipal water supply line.
11. The system of claim 4 wherein the primary water supply is a swimming pool.
12. The system of claim 4, further comprising a hose that is detachably connected to the pressure relief assembly.
13. The system of claim 4 wherein the pressure relief assembly is integrated into a first of the at least three ports of the water diverter.
14. The fire prevention system of claim 4, further comprising a conduit connecting the pressure relief assembly and a water return line.
15. A valve comprising:
- (a) four ports;
- (b) a pressure relief assembly integrated within a first port of the four ports; and
- (c) a spring loaded section having a closed position and an open position;
- wherein the spring loaded section moves from the closed position to the open position when the water pressure within the valve exceeds a predetermined level.
16. The valve of claim 15 wherein the spring loaded section is integrated into the pressure relief assembly.
17. The valve of claim 15 wherein a second port of the four ports detachably receives a hose.
18. A fire prevention system, comprising:
- (a) a valve having at least four ports;
- (b) a primary water supply line;
- (c) a hose;
- (d) a pressure relief assembly integrated into one of the at least four ports of the valve; and
- (e) a spring loaded section having a closed position and an open position;
- wherein at least a first of the at least four ports is an above-ground access port.
19. A valve comprising:
- (a) at least four ports;
- (b) a pressure relief assembly integrated within a first port of the at least four ports; and
- (c) a spring loaded section having a closed position and an open position;
- wherein the spring loaded section moves from the closed position to the open position when the water pressure within the valve exceeds a predetermined level.
20. A fire prevention system, comprising:
- (a) a valve having four ports;
- (b) a primary water supply;
- (c) a hose that is detachably connected to a first of the four ports of the valve;
- (d) a pressure relief assembly integrated into a second of the four ports of the valve; and
- (e) a spring loaded section having a closed position and an open position;
- wherein the spring loaded section moves from the closed position to the open position when the water pressure within the valve exceeds a predetermined level.
Type: Application
Filed: Nov 15, 2010
Publication Date: May 19, 2011
Inventors: Paul J. Claffey (Springtown, TX), Thomas G. Marshall (Weatherford, TX)
Application Number: 12/946,482
International Classification: A62C 2/00 (20060101);